Abrading – Abrading process
Reexamination Certificate
2011-08-23
2011-08-23
Morgan, Eileen P. (Department: 3723)
Abrading
Abrading process
C425S808000, C264S001100, C264S002500, C264S039000, C264S219000
Reexamination Certificate
active
08002608
ABSTRACT:
This invention is related to the process of polishing the optically critical surface of the front piece as well as the back piece, or non-optical surface, used to make molds used in double-sided molding process to make contact lens for reducing warpage of the mold, radius changes in different cavities and amount of cylindrical distortion. The polishing of both of the front piece and back piece causes the mold material to see a very similar coefficient of friction on both top and bottom surface and provides uniform flow front.
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Golinski James
Honea Dee Anna
Kendig Stephen
Ambrose Robert
Morgan Eileen P.
Novartis AG
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